GunMaster is an advanced firearm logbook for shooters who want more than a simple inventory.

Keep your firearms, ammunition, accessories and shooting activity in one connected history — stored locally on your phone.

LOG ONCE. EVERYTHING STAYS CONNECTED.

Record a shooting session and GunMaster automatically updates the data it affects: firearm round counts, rounds since the last cleaning, ammunition stock, statistics, calendar, timeline and the gear configuration used at the time.

A session can be broken down into individual series. Each series can include its own ammunition, round count, distance, magazine and target photo, so the context of every shot stays with the event it came from.

MORE THAN FIREARM INVENTORY

Every firearm has its own record sheet, round counter, statistics, calendar and timeline. Sessions, cleanings, malfunctions, purchases and setup changes become part of its complete history.

Track:

Firearms with photos, specifications, serial numbers and purchase details
Ammunition stock, purchases, corrections, rounds fired and cost per round
Shooting sessions divided into individual series
Target photos stored with the series they belong to
Magazines used during shooting sessions and malfunctions
Cleanings and rounds fired since the last cleaning
Malfunctions linked to the firearm, ammunition and magazine involved
Accessories and their mount history
Shooting statistics by firearm, caliber, month, ammunition and distance
Calendars and timelines built automatically from your events

DATA, NOT GUESSWORK.

GunMaster builds statistics from the events you already log. There is no separate spreadsheet to maintain and no need to manually copy values between records.

The longer you use GunMaster, the more useful your history becomes.

TRACK FIREARMS YOU DON'T OWN

Use a club gun, rental, borrowed firearm or something you are testing before buying? Mark it as a firearm you use rather than own and keep your shooting history complete.

PRIVATE BY DESIGN

Your firearm records are not stored on our servers.

No account.
No cloud database.
No analytics or tracking.
No third-party crash reporting.

Your firearms, ammunition, accessories, photos and event history stay locally on your device. The logbook works offline. Internet access is used only for handling and verifying your subscription through the app store.

ENCRYPTED BACKUPS

Export your complete GunMaster log, including photos if you choose, into a password-protected .gmb backup file. You decide where the backup is stored and how it is transferred.

Backup and restore are available without Premium.

START FOR FREE

Catalog as many firearms, ammunition entries and accessories as you want.

The free plan includes full event logging for your first 3 firearms, 6 ammunition entries and 6 accessories.

GunMaster Premium unlocks new event logging across your entire collection.

If you cancel Premium, your existing data does not disappear or become read-only. You can continue viewing and editing your collection and existing history, and you can still create backups.

Your collection has a history. Keep all of it.